joshpit2003 OP t1_jc3yedp wrote on March 13, 2023 at 9:30 PM

Reply to comment by maybewonderful in Room Air-Filter: Dumb filter + K&N HVAC (reusable merv 11) + Programmable Outlet Device = Low cost and reliable. by joshpit2003

For home use: It's helpful for those sensitive to dust or allergies.
Or for those in California: It's helpful for scrubbing wildfire particulate matter from the air.

Otherwise, I agree it isn't needed. Your HVAC filter should be your first line of defense. These stand alone filters are just extra.

maybewonderful t1_jdn6bjh wrote on March 25, 2023 at 5:26 PM

Allergies and wildfires are very good reasons, thanks for getting back to me :)